At that point, he thought he had won, until his plans were interfered by Ash, Misty, May, Max, Brock, Miranda and Sara, the Mirage Kingdom Princess, and Togepi, who had evolved into Togetic. Jessie, James and Meowth, after being betrayed by Hansen, decided to get back at Hansen and covertly helped Ash and his friends on their mission to dethrone Hansen. Even with the help from his Pokémon, Hansen ended up losing to the heroes, being dethroned, and put into the dungeon.
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This is the listing of Colonel Hansen's known Pokémon:
Hansen possessed Misty's Togepi only for a short period of time after he used his Ninjask to knock it out while Misty, Ash, his friends, Miranda and Sara were trapped in the Togepi Paradise. He used it to gain the throne of Mirage Kingdom and attempted to use its Metronome to open the gate to Togepi Paradise, but was interrupted by Ash and the others. Several Togepi from the Paradise then arrived and gave Misty's Togepi power to wake up and evolve into Togetic.